I am working on a project that is providing a large array of solar thermal for heating and water heating. We need to achieve the Green Power credit as well. Do I get to subtract my on-site green power production from the energy use in the energy model before doing calculations for amount of Green Power the client will need to purchase?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5909 thumbs up
June 22, 2010 - 4:47 pm
Your solar thermal system would be included in the proposed energy model and thereby reduce the overall energy use and cost. Assuming that some of the energy being offset by your solar system is electricity then the amount of electricity usage would be lower making your EAc6 purchase smaller. If your solar thermal purchase is only off-setting natural gas (or some other fossil fuel) use however, then your electricity usage would not change. So the amount of electricity you need to purchase would be based on electricity usage from the energy model after subtracting your on-site solar thermal contribution.